... .. 5.SGS test Temperature sensitive pigment / Thermochromic pigment / color changing with temperature pigment/ heat sensitive pigmentColor changes according ... blue / Blue/ Sky blue/ Peach / Orange / Chinese red/ Red/Yellow / Dark blue/ Grass Green/ Black/ Green Standard temperatures ... . Color range: Grass Green, orange, yellow, purple, red, purple, blue, black, golden yellow, skyblue,etc...Standard ...